Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois, Climate Division 5. East

Average Temperature Rankings, June 1991

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
June 1991 1-Month	75.1°F (23.9°C)	70.4°F (21.3°C)	4.7°F (2.6°C)	124th Coolest	Coolest since: 1990	1903
June 1991 1-Month	75.1°F (23.9°C)	70.4°F (21.3°C)	4.7°F (2.6°C)	5th Warmest	Warmest since: 1971	1933
May–Jun 1991 2-Month	71.8°F (22.1°C)	65.8°F (18.8°C)	6.0°F (3.3°C)	127th Coolest	Coolest since: 1990	1907
May–Jun 1991 2-Month	71.8°F (22.1°C)	65.8°F (18.8°C)	6.0°F (3.3°C)	2nd Warmest	Warmest to Date	2018
Apr–Jun 1991 3-Month	66.2°F (19.0°C)	60.4°F (15.8°C)	5.8°F (3.2°C)	128th Coolest	Coolest since: 1990	1907
Apr–Jun 1991 3-Month	66.2°F (19.0°C)	60.4°F (15.8°C)	5.8°F (3.2°C)	1st Warmest	Warmest to Date	1991
Mar–Jun 1991 4-Month	60.2°F (15.7°C)	54.9°F (12.7°C)	5.3°F (3.0°C)	127th Coolest	Coolest since: 1990	1926, 1960
Mar–Jun 1991 4-Month	60.2°F (15.7°C)	54.9°F (12.7°C)	5.3°F (3.0°C)	2nd Warmest	Warmest to Date	2012
Feb–Jun 1991 5-Month	54.6°F (12.6°C)	49.4°F (9.7°C)	5.2°F (2.9°C)	127th Coolest	Coolest since: 1990	1904, 1947
Feb–Jun 1991 5-Month	54.6°F (12.6°C)	49.4°F (9.7°C)	5.2°F (2.9°C)	2nd Warmest	Warmest to Date	2012
Jan–Jun 1991 6-Month	49.3°F (9.6°C)	45.1°F (7.3°C)	4.2°F (2.3°C)	124th Coolest	Coolest since: 1990	1912
Jan–Jun 1991 6-Month	49.3°F (9.6°C)	45.1°F (7.3°C)	4.2°F (2.3°C)	5th Warmest	Warmest since: 1921	2012
Dec 1990–Jun 1991 7-Month	46.5°F (8.1°C)	42.7°F (5.9°C)	3.8°F (2.2°C)	122nd Coolest	Coolest since: 1990	1904
	46.5°F (8.1°C)	42.7°F (5.9°C)	3.8°F (2.2°C)	6th Warmest	Warmest since: 1987	2012
	Ties: 1987
Nov 1990–Jun 1991 8-Month	46.5°F (8.1°C)	42.4°F (5.8°C)	4.1°F (2.3°C)	124th Coolest	Coolest since: 1990	1904
Nov 1990–Jun 1991 8-Month	46.5°F (8.1°C)	42.4°F (5.8°C)	4.1°F (2.3°C)	4th Warmest	Warmest to Date	2012
Oct 1990–Jun 1991 9-Month	47.1°F (8.4°C)	43.6°F (6.4°C)	3.5°F (2.0°C)	122nd Coolest	Coolest since: 1990	1904
Oct 1990–Jun 1991 9-Month	47.1°F (8.4°C)	43.6°F (6.4°C)	3.5°F (2.0°C)	6th Warmest	Warmest since: 1932	2012
Sep 1990–Jun 1991 10-Month	49.0°F (9.4°C)	45.7°F (7.6°C)	3.3°F (1.8°C)	122nd Coolest	Coolest since: 1990	1904
	49.0°F (9.4°C)	45.7°F (7.6°C)	3.3°F (1.8°C)	6th Warmest	Warmest since: 1932	2012
	Ties: 1999
Aug 1990–Jun 1991 11-Month	51.0°F (10.6°C)	48.1°F (8.9°C)	2.9°F (1.7°C)	121st Coolest	Coolest since: 1990	1904
	51.0°F (10.6°C)	48.1°F (8.9°C)	2.9°F (1.7°C)	7th Warmest	Warmest since: 1932	2012, 2017
	Ties: 2006
Jul 1990–Jun 1991 12-Month	52.8°F (11.6°C)	50.3°F (10.2°C)	2.5°F (1.4°C)	120th Coolest	Coolest since: 1990	1904
Jul 1990–Jun 1991 12-Month	52.8°F (11.6°C)	50.3°F (10.2°C)	2.5°F (1.4°C)	8th Warmest	Warmest since: 1932	2012
Jan 1990–Jun 1991 18-Month	51.5°F (10.8°C)	48.6°F (9.2°C)	2.9°F (1.6°C)	122nd Coolest	Coolest since: 1990	1905
Jan 1990–Jun 1991 18-Month	51.5°F (10.8°C)	48.6°F (9.2°C)	2.9°F (1.6°C)	6th Warmest	Warmest since: 1932	2017
Jul 1989–Jun 1991 24-Month	51.9°F (11.1°C)	50.3°F (10.2°C)	1.6°F (0.9°C)	111th Coolest	Coolest since: 1990	1905
	51.9°F (11.1°C)	50.3°F (10.2°C)	1.6°F (0.9°C)	16th Warmest	Warmest since: 1988	2017
	Ties: 1988, 2005, 2021
Jul 1988–Jun 1991 36-Month	51.6°F (10.9°C)	50.3°F (10.2°C)	1.3°F (0.7°C)	104th Coolest	Coolest since: 1990	1905, 1906
	51.6°F (10.9°C)	50.3°F (10.2°C)	1.3°F (0.7°C)	22nd Warmest	Warmest since: 1989	2018
	Ties: 1989, 1999
Jul 1987–Jun 1991 48-Month	51.5°F (10.8°C)	50.3°F (10.2°C)	1.2°F (0.6°C)	103rd Coolest	Coolest since: 1990	1905
	51.5°F (10.8°C)	50.3°F (10.2°C)	1.2°F (0.6°C)	22nd Warmest	Warmest since: 1957	2019
	Ties: 2003, 2014, 2017, 2021
Jul 1986–Jun 1991 60-Month	51.7°F (10.9°C)	50.3°F (10.2°C)	1.4°F (0.7°C)	114th Coolest	Coolest since: 1990	1906
	51.7°F (10.9°C)	50.3°F (10.2°C)	1.4°F (0.7°C)	10th Warmest	Warmest since: 1935	2020
	Ties: 1934, 2009, 2012, 2013

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings